The Bogen A2 Series Loudspeaker features low frequency drivers incorporating NEAR Metal Diaphragm Technology (MDT) metal-alloy cones and Magnetic Liquid Suspension (MLS) spiderless suspension technologies for superior sound quality and also to provide greater reliability in outdoor use. These speaker assemblies are designed to be impervious to heat, cold, rain, moisture and salt spray. All hardware materials are extremely weather-resistant. Its compact design, high audio intelligibility and superb articulation make it the ideal loudspeaker for music or paging, inside or out. They are available in a choice of three colors: black, green or white.